<template>
  <a-layout>
    <a-layout-content :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }">

      <a-row :gutter="24">
        <a-col :span="8">
          <p>
            <a-button type="primary" @click="add()">
              新增
            </a-button>
          </p>
          <a-table v-if="level1.length > 0" :columns="columns" :row-key="record => record.id" :data-source="level1"
            :pagination="false" :loading="loading" @change="handleTableChange" size="small" :defaultExpandAllRows="true">
            <template #name="{ text, record }">
              {{ record.sort }}{{ text }}
            </template>
            <template v-slot:action="{ text, record }">
              <a-space size="small">
                <a-button type="primary" @click="edit(record)">
                  编辑
                </a-button>
                <a-popconfirm title="删除后不可以恢复，确认删除?" ok-text="是" cancel-text="否" @confirm="handleDelete(record.id)">
                  <a-button danger>
                    删除
                  </a-button>
                </a-popconfirm>
              </a-space>
            </template>
          </a-table>
        </a-col>
        <a-col :span="16">
          <p>
            <a-form layout="inline" :model="param">
              <a-form-item>
                <a-button type="primary" @click="handleSave()">
                  保存
                </a-button>
              </a-form-item>
            </a-form>
          </p>
          <a-form :model="doc" layout="vertical">
            <a-form-item>
              <a-input v-model:value="doc.name" placeholder="名称" />
            </a-form-item>
            <!-- <a-form-item label="父分类">
          <a-select
              v-model:value="doc.parent"
              ref="select"
          >
            <a-select-option value="0">
              无
            </a-select-option>
            <a-select-option v-for="c in level1" :key="c.id" :value="c.id"
              :disabled="doc.id === c.id">
              {{c.name}}
            </a-select-option>
          </a-select>
        </a-form-item> -->
            <a-form-item>
              <a-tree-select v-model:value="doc.parent" style="width: 100%"
                :dropdown-style="{ maxHeight: '400px', overflow: 'auto' }" :tree-data="treeSelectData"
                placeholder="请选择父文档" tree-default-expand-all
                :field-names="{ children: 'children', label: 'name', value: 'id' }">
              </a-tree-select>
            </a-form-item>

            <a-form-item>
              <a-input v-model:value="doc.sort" placeholder="顺序" />
            </a-form-item>
            <a-form-item>
              <a-button type="primary" @click="handlePreviewContent()">
                <EyeOutlined />内容预览
              </a-button>
            </a-form-item>
            <a-form-item label="内容">
              <div id="content"></div>
            </a-form-item>
          </a-form>
        </a-col>
      </a-row>

      <a-drawer width="900" placement="right" :closable="false" :visible="drawerVisible" @close="onDrawerClose">
        <div class="wangeditor" :innerHTML="previewHtml"></div>
      </a-drawer>

      <a-button type="primary" @click="add()">
        新增
      </a-button>


    </a-layout-content>
  </a-layout>

  <!-- <a-modal title="分类表单" v-model:visible="modalVisible" :confirm-loading="modalLoading" @ok="handleModalOk">
    
  </a-modal> -->
</template>
<script lang="ts">
import { defineComponent, onMounted, ref, createVNode } from 'vue';
import axios from 'axios';
import { Tool } from '@/utils/tool';
import { message, Modal } from "ant-design-vue";
import { useRoute } from "vue-router";
import ExclamationCircleOutlined from "@ant-design/icons-vue/ExclamationCircleOutlined";
import E from 'wangeditor';
import create from '@ant-design/icons-vue/lib/components/IconFont';



export default defineComponent({
  name: 'AdminDoc',

  setup() {
    const route = useRoute();
    const categorys = ref();
    const pagination = ref({
      current: 1,
      pageSize: 2,
      total: 0
    });
    const loading = ref(false);
    //因为树选择组件的属性状态，会根据当前编辑的节点二变化，所以单独声明一个响应式变量
    const treeSelectData = ref();
    treeSelectData.value = [];
    const columns = [
      {
        title: '名称',
        dataIndex: 'name'
      },
      {
        title: 'Action',
        key: 'action',
        slots: { customRender: 'action' }
      }
    ];
    const level1 = ref();//一级文档树
    level1.value = [];

    /*
    * 数据查询
    * */

    const handleQuery = () => {
      loading.value = true;
      //清空数据

      axios.get("/doc/allList?ebookId" + route.query.ebookId).then((resp) => {
        loading.value = false;
        const data = resp.data;
        categorys.value = data.content;
        if (data.success) {
          console.log("原始数组", data.content);

          level1.value = [];
          level1.value = Tool.array2Tree(data.content, 0);
          console.log("树形结构：", level1);

          //父文档下拉框初始化，相当于点击新增
          treeSelectData.value = Tool.copy(level1.value) || [];
          //为选择树添加一个‘无’
          treeSelectData.value.unshift({
            id: 0,
            name: '无'
          })
        } else {
          message.error(data.message);
        }
      });
    };

    // -------- 表单 ---------

    const doc = ref();
    doc.value = {
      ebookId: route.query.ebookId,
    };


    const editor = new E('#content');
    const modalVisible = ref(false);
    const modalLoading = ref(false);

    editor.config.zIndex = 0;
    const handleSave = () => {
      modalLoading.value = true;

      doc.value.content = editor.txt.html();


      console.log(doc.value);
      axios.post("/doc/save", doc.value).then((resp) => {
        modalLoading.value = false;
        const data = resp.data;
        if (data.success) {
          message.success("保存成功")
          // modalVisible.value = false;
          // modalLoading.value = false;
          //重新加载列表
          handleQuery();
        }
      })
    };
    /**
* 将某节点及其子孙节点全部置为disabled
*/
    const setDisable = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("disabled", node);
          // 将目标节点设置为disabled
          node.disabled = true;

          // 遍历所有子节点，将所有子节点全部都加上disabled
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              setDisable(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            setDisable(children, id);
          }
        }
      }
    };
    /**
* 查找整根树枝
*/
    const ids: Array<string> = [];
    const deleteNames: Array<string> = [];
    const getDeleteIds = (treeSelectData: any, id: any) => {
      // console.log(treeSelectData, id);
      // 遍历数组，即遍历某一层节点
      for (let i = 0; i < treeSelectData.length; i++) {
        const node = treeSelectData[i];
        if (node.id === id) {
          // 如果当前节点就是目标节点
          console.log("delete", node);
          // 将目标ID放入结果集ids
          // node.disabled = true;
          ids.push(id);
          deleteNames.push(node.name);
          // 遍历所有子节点
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            for (let j = 0; j < children.length; j++) {
              getDeleteIds(children, children[j].id)
            }
          }
        } else {
          // 如果当前节点不是目标节点，则到其子节点再找找看。
          const children = node.children;
          if (Tool.isNotEmpty(children)) {
            getDeleteIds(children, id);
          }
        }
      }
    };
    /**
* 内容查询
**/
    const handleQueryContent = () => {
      axios.get("/doc/findContentById/" + doc.value.id).then((response) => {
        const data = response.data;
        if (data.success) {
          editor.txt.html(data.content)
        } else {
          message.error(data.message);
        }
      });
    };

    //删除
    const handleDelete = (id: number) => {
      // 清空数组，否则多次删除时，数组会一直增加
      ids.length = 0;
      deleteNames.length = 0;
      getDeleteIds(level1.value, id);
      Modal.confirm({
        title: '重要提醒',
        icon: createVNode(ExclamationCircleOutlined),
        content: '将删除：【' + deleteNames.join(",") + "】删除后不可恢复，确认删除？",
        onOk() {
          // console.log(ids)
          axios.get('/doc/remove?ids=' + ids.join(",")).then((response) => {
            const data = response.data; // data = commonResp
            if (data.success) {
              // 重新加载列表
              handleQuery();
            } else {
              message.error(data.message);
            }
          });
        },
      });
    }
    //编辑
    const edit = (record: any) => {
      //清除富文本框
      editor.txt.html("");
      modalVisible.value = true;
      doc.value = record;
      modalVisible.value = true;

      doc.value = Tool.copy(record);
      handleQueryContent();

      //不能选择当前节点及其所有子孙节点作为父节点，会使树断开
      treeSelectData.value = Tool.copy(level1.value);
      setDisable(treeSelectData.value, record.id);

      treeSelectData.value.unshift({ id: 0, name: '无' });
    }
    //新增
    const add = () => {
      //清除富文本框
      editor.txt.html("");
      modalVisible.value = true;
      doc.value = {
        ebookId: route.query.ebookId
      };
      modalVisible.value = true;

      treeSelectData.value = Tool.copy(level1.value) || [];
      //为选择树添加一个"无"
      treeSelectData.value.unshift({ id: 0, name: '无' });


    }

     //-----------富文本预览------------------
     const drawerVisible = ref(false);
    const previewHtml = ref();
    const handlePreviewContent = () => {
      console.log(editor.txt.html());
      const html = editor.txt.html();
      previewHtml.value = html;
      drawerVisible.value = true;
    };
    const onDrawerClose = () => {
      drawerVisible.value = false;
    };



    onMounted(() => {
      editor.create();
      handleQuery();
    })
    return {
      categorys,
      pagination,
      columns,
      loading,

      edit,
      modalVisible,
      modalLoading,
      handleSave,
      doc,
      add,
      handleDelete,
      level1,
      treeSelectData,

      drawerVisible,
      previewHtml,
      onDrawerClose,
      handlePreviewContent,


    }
  }
});
</script>